Examples

Dorsum: the upper surface: in Coleoptera; often confined to meso - and meta-thorax: Odonata; includes mesepisterna and meso - and meta-thoracic terga: Diptera; upper surface of thorax, limited by the dorsopleural sutures laterally, the scutellum posteriorly and the neck anteriorly: Lepidoptera; the lower or inner margin of the wing.